Hello,

The 17'' PowerBook I had a while ago was badly dented on the left hand and side of the lower case. So I decided to tap the damage out with a tack hammer. I managed to tap out the worst of it out but alas it did not look right. In the end I bought a replacement part for a tenner.

It might be worthwhile it try and tap out some of the damage but your cosmetic mileage may vary.